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[MOD][ROOT] Overclock your screen to 75hz refresh rate (other refresh rates later)

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mongorie

Member
Feb 3, 2014
6
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Fatal_Scythe

Senior Member
Jan 4, 2018
201
71
Saarland
Redmi K20 Pro
OnePlus 9 Pro
Are you sure it works fine? Mine also says 72Hz, but it is really stuttery.. When I check testufo online it gives me only 30Hz. Could you check that?
Mine was also stuttering at the beginning, had to enable Anti-Flicker-Mode in Display settings after that it's pretty smooth.
Testufo gives confusing results, latest Chrome Browser says 42Hz and Firefox says it's still only at 60Hz? :confused:
 

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djtechno98

Senior Member
Aug 1, 2014
218
71
Rivoli
Tried the 72hz mod on k20 pro with miui 11 REV OS 9.10.31. Flashed successfully, but it seems more laggish than 60hz...animations very slow and system in general. So i bring back 60hz dtbo and now is very fluid!

Seems like with the miui 11 is not stable yet.
 
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Cocoyg

Senior Member
Feb 7, 2017
111
7
I'm using Lanthanum apk found in the first page. It keeps on crashing when I try to flash the dtbo image. Anyone experiencing this? It works fine when I export image.
 

Blitzz.666

Senior Member
Jan 10, 2018
73
22
It doesn't work on all roms. I have xiaomi.eu latest, and none of the mods work. I have the same results as you.
 

Mohammed779

Senior Member
Dec 28, 2012
1,262
554
Mi 9t pro, both global, Chinese, Indian, stable and developer rom doesn't work, tried Xiaomi eu ROM which actually turns my phone in a K20 Pro and still no work, not on stable not even on weekly (now 9.10.31). All .IMG dtbo for miui 11 android 10 give 30hz. Reading here, if someone got it working lost safety net pass or fingerprint or WiFi (I lost nfc). So this is TOTALLY USELESS AND DANGEROUS ... AND TO BE HONEST I BOUGHT THUS PHONE ONLY FOR 75HZ MOD. SHAME.
Uhh, you could use MiFlash to fastboot Chinese MIUI 9.3.16, yes exactly that version, then mod will work fine. Recovery ROM flash may not make it work. I have a global mi9t pro and that worked for me. But green tint at lower brightness was there, reverted back. You may install other working MIUI versions like xiaomi.eu afterwards.

---------- Post added at 02:24 PM ---------- Previous post was at 02:22 PM ----------

I've downgraded mine back to Android 9. Using evolution 2.3 rom with 81hz mode and it's amazing .
Do you have greenish tint at low brightness?
 

nirajdev12

Member
Nov 1, 2019
11
2
Uhh, you could use MiFlash to fastboot Chinese MIUI 9.3.16, yes exactly that version, then mod will work fine. Recovery ROM flash may not make it work. I have a global mi9t pro and that worked for me. But green tint at lower brightness was there, reverted back. You may install other working MIUI versions like xiaomi.eu afterwards.

---------- Post added at 02:24 PM ---------- Previous post was at 02:22 PM ----------


Do you have greenish tint at low brightness?

No man i didnt noticed that.
 

Espmic86

Senior Member
Feb 1, 2017
104
60
Uhh, you could use MiFlash to fastboot Chinese MIUI 9.3.16, yes exactly that version, then mod will work fine. Recovery ROM flash may not make it work. I have a global mi9t pro and that worked for me. But green tint at lower brightness was there, reverted back. You may install other working MIUI versions like xiaomi.eu afterwards.

---------- Post added at 02:24 PM ---------- Previous post was at 02:22 PM ----------


Do you have greenish tint at low brightness?

Yes yes SIA tried stable China fastboot 10.3.16 and it works but what I wanted to know is after that I installed xiaomi.eu 10.3.16 it still works but can I install new releases of Xiaomi.eu and the refresh mod still works in your opinion? So I can make updates or should I stuck at that old release?
 

Mohammed779

Senior Member
Dec 28, 2012
1,262
554
Yes yes SIA tried stable China fastboot 10.3.16 and it works but what I wanted to know is after that I installed xiaomi.eu 10.3.16 it still works but can I install new releases of Xiaomi.eu and the refresh mod still works in your opinion? So I can make updates or should I stuck at that old release?
Won't work afterwards sadly. You may go for pie AOSP but that's about it.
 

_ray_

Senior Member
May 7, 2009
354
88
Is this mod working with latest Miui 11 Android 10 update on Mi9T Pro?
 

doixanh

Inactive Recognized Developer
Jan 23, 2011
1,269
5,349
Works for me on xiaomi.eu 11.0.2 and 69Hz.

72hz doesn't work and fall back to 30hz.
 

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mautz001

Senior Member
Feb 7, 2009
337
19
28
Münster
r-dieker.de
anyone got the original dtbo file backed up? stpid as I am I didnt made a backup and now everything is slow and lagging, using xiaomi.eu newest ROM on Mi9T pro Android 10 .
 

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  • 72
    This was released by a two Chinese developers ZhenXin(@realheart) and Andy Chang(@atomsand)

    Current released mods: 75hz & 81hz (For Android 9) and 66hz/69hz/72hz (For Android 10)

    Android 9 Mods Currently works/tested on:
    - Chinese dev rom 9.7.11 and below ONLY (xiaomi.eu weekly works too as it is based on the chinese dev rom)
    - Chinese stable rom 10.3.16 and below ONLY (xiaomi.eu stable works too as it is based on the chinese stable rom)
    - Global/Indian stable rom 10.3.3.0 - see here thanks @954wrecker
    - I tested it on xiaomi.eu 9.7.4 (imho the most stable version) on a China set K20 Pro 8gb+128gb
    - 75hz and 81hz both working perfectly
    - Minimal battery drain due to slight overclock from original(60hz) for the 75hz version, 81hz seems minimal as well

    Android 10 Mods Currently works/tested on:
    - 9.8.15 working well​

    Use it at your own risk! It is unknown if it causes any long term or temporary damage to the screen yet. (But since it uses the same screen as the mi9, which has the same mod released a while back, it should be fine!)

    ==================================
    USAGE INSTRUCTIONS
    ==================================

    MAKE A BACKUP OF DTBO PARTITION FIRST!! (Two Methods choose one)
    >>>Via TWRP
    - Boot to TWRP
    - Select Backup
    - Select only the DTBO partition
    - Select storage location, click backup

    >>>Via Lanthanum System Toolbox App
    - Download the attached Lanthanum System Toolbox.apk file, install the apk, then open it
    - Select partition settings from the hamburger menu
    - Select dtbo, make a backup of it (Export image)

    FLASH THE MOD (Four methods choose one)
    >>>Via TWRP
    - Download the attached dtbo_K20P_75Hz_d2e98.img (or dtbo_K20P_81Hz.img)
    - Copy it to your thumbdrive or phone
    - Boot to TWRP
    - Select install
    - Select install image
    - Choose your image file
    - SELECT DTBO partition to flash the file to
    - Swipe to confirm flash!

    >>>Via Fastboot
    - Connect phone(bootloader mode) to computer
    - Open up command prompt
    - Type fastboot devices to ensure device is connected
    - Type: Fastboot flash dtbo dtbo_K20P_75Hz_d2e98.img (or dtbo_K20P_81Hz.img)
    - Done!

    >>>Via Lanthanum System Toolbox App
    - Download the attached Lanthanum System Toolbox.apk file, install the apk, then open it
    - Select partition settings from the hamburger menu
    - Select dtbo again, click flash image, and choose the dtbo.img file
    -Reboot

    >>>Via Magisk module
    - Coming soon, will update once I downloaded it

    You should see the changes immediately after the restart. It's way smoother than before.
    If you want to go back to default, flash your backed up dtbo image file either via fastboot or TWRP restore partiton

    ==================================
    DOWNLOAD
    ==================================
    View attachment Lanthanum_System_Toolbox.apk
    For Android 9:
    View attachment dtbo_K20P_75Hz_d2e98.img
    View attachment dtbo_K20P_81Hz.img
    For Android 10:
    View attachment dtbo_K20Pro_(Q)_60hz.zip
    View attachment dtbo_K20Pro_(Q)_66hz.img
    View attachment dtbo_K20Pro_(Q)_69hz.img
    View attachment dtbo_K20Pro_(Q)_72hz.img
    8
    Decided to invest some time and reverse engineer the patch real quick to see what makes it tick and what keeps it from working on Global units.

    Turns out the whole dtbo.img is completely different.
    In fact, the dtbo.img of Global units is nearly double the size of the Chinese variants.

    I quickly realized that getting this running on Global units (and maybe EEA?) would require people to provide their own dtbo.img (for whatever region their device is from), and apply this patch on top of it.

    As part of that I created a simple patcher tool onto which you drag your dtbo.img file to get it patched to 81Hz, once done you'd just flash the patched dtbo.img.out file the tool spits out.

    I'd provide the link but XDA is brutal about Patreon and other external links. For those that really want to find it though, it's easy enough just googling for my Black-Seraph username.
    8
    Hello friends,

    I've removed some posts with rude language and off topic discussion.
    Please keep in mind to discuss on topic and without offending others:)
    Please be friendly to members and report with prove/logs/facts instead of reply/engage without content.

    I recommend to read the FORUM RULES.


    Regards!

    strongst
    Forum Moderator
    6
    Just install immensity kernel and this dtbo and you will have 75hz working everywhere with no green tint and no need to disable hw overlays and DC anti flickering no frame drops and works with all ROMs.

    Btw immensity kernel got no bugs at all now, boosts performance in an unbelievable way and is the only way to let this 75hz dtbo work properly on Raphael (tried with can based firmware Xiaomi.eu 11.0.5 and European global firmware, if you install this kernel the dtbo works , otherwise no way). This is actually the best way to have refresh oberxlocked with no issues

    Finally it works with l1 hdr and netflix also, all problems solved, I suggest manually installing also dual speaker XML mixer files in system vendor etc folder setting permissions rw-r-r 0644 to enjoy the greatest possible experience

    Use with root es file explorer to move files in root and set permission using the option properties

    All files attached , dtbo must be unzipped and use the image to flash it through twrp


    Also install in magisk 320kbps audio bitrate (normally is 96).

    If you can install viper as well use it with tube amplifier convoiler with -14db master audio and you ll enjoy something exceptional

    Of course need selinux switched on permissive, ADB and busybox installed, audio modification library then install viper drivers and set it as you like, if driver installation fails try and retry , maybe unchecking in magisk modules the aml
    5
    Does this mod make only the screen refresh more frequently or does this mean the touch screen digitizer also samples more frequently?

    At launch the digitizer was touted to be 180hz, it was throttled to 60hz in newer firmware.
    This mod increases the touch frequency to match the response rate (either 75 or 81)
    OHNUqDc.jpg

    You can test yours using this app: View attachment dc.xyn.touchrequency1.2.apk

    Would i work on further versions of miui if someone managed to port the adreno drivers?

    Yup, the dev is working on porting adreno drivers so it can be used on newer eu weeklies/newer china dev rom